If a carbon atom has 7 neutrons and 6
protons, what is its mass number?

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?